も若moしくはshikuha
1.
A conjunction used to indicate a choice between two options, suggesting that one must select one of the two presented possibilities.
2.
A term that conveys an alternative relationship between two statements, often emphasizing a lesser degree of connection compared to other conjunctions used in formal contexts.
3.
An expression that implies uncertainty or possibility, translating to something like "perhaps" or "maybe," indicating an alternative scenario or condition.
4.
A phrase used in legal or formal language to present options that are not mutually exclusive, often highlighting that more than one choice may be available but specified in a hierarchical manner.
Example:
７０年もしくは８０年が人間の普通の寿命期間である。